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9 September, 19:28

A sample of calcium contains 0.025 moles how many atoms are in this sample

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  1. 9 September, 21:08
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    As we know 1 mole of any substance having particles Na=6.02*10^23

    So 0.025 moles of calcium having

    1 mole/0.025=6.02*10^23/x

    *=0.025*6.02*10^23=1.51*10^22
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